參數(shù)資料
型號(hào)： MC44603P
廠商： MOTOROLA INC
元件分類： 穩(wěn)壓器
英文描述： RV Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 3.3V; Output Voltage (Vdc): 3.3V; Power: 2W; High Isolation 2W Converter; Approved for Medical Applications; EN and UL Safety Certificates; 6kVDC Isolation; Skinny DIP24 Package; Optional Continuous Short Circuit Protected; Fully Encapsulated; Very Low Isolation Capacitance
中文描述： 0.75 A SWITCHING CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDIP16
封裝： PLASTIC, DIP-16
文件頁數(shù)： 3/24頁
文件大?。?/td> 410K
代理商： MC44603P
MC44603A
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS
(continued)
(VCC and VC = 12 V, [Note 3], Rref = 10 k
, CT = 820 pF, for typical values TA = 25
°
C,
for min/max values TA = –25
°
to +85
°
C [Note 4], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
ERROR AMPLIFIER SECTION (continued)
Unity Gain Bandwidth
TJ = 25
°
C
TJ = –25
°
to +85
°
C
Voltage Feedback Input Line Regulation (VCC = 10 to 15 V)
Output Current
Sink (VE/A out = 1.5 V, VFB = 2.7 V)
TA = –25
°
to +85
°
C
Source (VE/A out = 5.0 V, VFB = 2.3 V)
TA = –25
°
to +85
°
C
Output Voltage Swing
High State (IE/A out (source) = 0.5 mA, VFB = 2.3 V)
Low State (IE/A out (sink) = 0.33 mA, VFB = 2.7 V)
REFERENCE SECTION
BW
MHz
–
–
4.0
–
–
5.5
VFBline–reg
–10
–
10
mV
mA
ISink
2.0
12
–
ISource
–2.0
–
–0.2
V
VOH
VOL
5.5
–
6.5
1.0
7.5
1.1
Reference Output Voltage (VCC = 10 to 15 V)
Reference Current Range (Iref = Vref/Rref, R = 5.0 k to 25 k
)
Reference Voltage Over Iref Range
OSCILLATOR AND SYNCHRONIZATION SECTION
Vref
Iref
Vref
2.4
2.5
2.6
V
–500
–
–100
μ
A
–40
–
40
mV
Frequency
TA = 0
°
to +70
°
C
TA = –25
°
to +85
°
C
Frequency Change with Voltage (VCC = 10 to 15 V)
Frequency Change with Temperature (TA = –25
°
to +85
°
C)
Oscillator Voltage Swing (Peak–to–Peak)
fOSC
kHz
44.5
44
48
–
51.5
52
fOSC/
V
fOSC/
T
VOSC(pp)
Icharge/Iref
–
0.05
–
%/V
–
0.05
–
%/
°
C
1.65
1.8
1.95
V
Ratio Charge Current/Reference Current
TA = 0
°
to +70
°
C (VCT = 2.0 V)
TA = –25
°
to +85
°
C
Fixed Maximum Duty Cycle = Idischarge/(Idischarge + Icharge)
Ratio Standby Discharge Current versus IR F Stby (Note 6)
TA = 0
°
to +70
°
C
TA = –25
°
to +85
°
C (Note 8)
VR F Stby (IR F Stby = 100
μ
A)
Frequency in Standby Mode (RF Stby (Pin 15) = 25 k
)
Current Range
–
0.375
0.37
0.4
–
0.425
0.43
D
78
80
82
%
Idisch–Stby/
IR F Stby
–
0.46
0.43
0.53
–
0.6
0.63
VR F Stby
FStby
IR F Stby
VinthH
VinthL
ISync–in
tSync
2.4
2.5
2.6
V
18
21
24
kHz
–200
–
–50
μ
A
Synchronization Input Threshold Voltage (Note 7)
3.2
0.45
3.7
0.7
4.3
0.9
V
Synchronization Input Current
–5.0
–
0
μ
A
Minimum Synchronization Pulse Width (Note 8)
–
–
0.5
μ
s
UNDERVOLTAGE LOCKOUT SECTION
Startup Threshold
Vstup–th
Vdisable1
13.6
14.5
15.4
V
Output Disable Voltage After Threshold Turn–On (UVLO 1)
TA = 0
°
to +70
°
C
TA = –25
°
to +85
°
C
Reference Disable Voltage After Threshold Turn–On (UVLO 2)
V
8.6
8.3
9.0
–
9.4
9.6
Vdisable2
7.0
7.5
8.0
V
NOTES:
1
3. Adjust VCC above the startup threshold before setting to 12 V.
1
4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
1
6. Standby is disabled for VR P Stby < 25 mV typical.
1
7. If not used, Synchronization input must be connected to Ground.
1
8. Synchronization Pulse Width must be shorter than tOSC = 1/fOSC.
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